cxi - client
cxid - server (d for daemon)
make
mkdir local
mkdir remote
ln -s cxid remote/cxid
ln -s cxi local/cxi
In one terminal, run the local folder's cxi
in another, run the remote folder's cxid
ls # list files
put # put file into server
get # get file from server
rm # remove file from server
exit # exit